Gas turbine engine combustion chamber comprising cmc deflectors

F - Mech Eng,Light,Heat,Weapons – 23 – R

Patent

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Details

F23R 3/28 (2006.01) F23R 3/50 (2006.01)

Patent

CA 2727254

The present invention relates to a gas turbine engine combustion chamber comprising at least one deflector (12) mounted on the chamber end wall (11) provided with an opening for a carburetted air supply device (13). The chamber is characterized in that the deflector (12) comprises an opening, corresponding to the chamber end wall opening, with an annular cylindrical part (12c) for attachment to the said wall, the said cylindrical part (12c) comprising a mechanical attachment means (12c1) collaborating with a complementary attachment means (14d, 26d) on a metal sleeve (14, 26) secured to the said wall (11) and a cylindrical centring cup (16a, 26a) fixed by one end to the said sleeve (14, 26) and housed inside the cylindrical part (12c) of the deflector (12).

La présente invention porte sur une chambre de combustion de moteur à turbine à gaz comprenant au moins un déflecteur (12) monté sur la paroi (11) de fond de chambre pourvue d'une ouverture pour un dispositif (13) d'alimentation en air carburé. La chambre est caractérisée par le fait que le déflecteur (12) comprend une ouverture, correspondante à l'ouverture du fond de chambre, avec une partie cylindrique (12c) annulaire de fixation à ladite paroi, ladite partie cylindrique (12c) comprenant un moyen d'accrochage mécanique (12c1) coopérant avec un moyen d'accrochage complémentaire (14d, 26d) sur un fourreau (14, 26) métallique solidaire de ladite paroi (11) et une coupelle cylindrique de centrage (16a, 26a) fixée par une extrémité audit fourreau (14, 26) et logée à l'intérieur de la partie cylindrique (12c) du déflecteur (12).

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